1 files changed, 1 insertions, 0 deletions

diff --git a/modules/yggdrasil-wg/default.nix b/modules/yggdrasil-wg/default.nix
index 67bb34f5..8e2ba7a4 100644
--- a/modules/yggdrasil-wg/default.nix
+++ b/modules/yggdrasil-wg/default.nix
@@ -77,6 +77,7 @@ in {
         peers = filter (value: value != null) (imap0 (ix: opts@{to, from, ...}: if from == hostName || to == hostName then linkToPeer ix opts else null) links);
         privateKeyFile = config.sops.secrets."yggdrasil-wg.priv".path;
         postSetup = ''
+          ip li set mtu 1280 dev yggdrasil
           ${concatMapStringsSep "\n" (linkArgs: let other = if linkArgs.from == hostName then linkArgs.to else linkArgs.from; in concatMapStringsSep "\n" (otherIP: "ip route replace \"${otherIP}\" dev \"yggdrasil\" table \"main\"") hostIPs.${other}) hostLinks}
           ${concatMapStringsSep "\n" (routeArgs: let other = if routeArgs.from == hostName then routeArgs.to else routeArgs.from; in concatMapStringsSep "\n" (otherIP: concatMapStringsSep "\n" (viaIP: "ip route replace \"${otherIP}\" via \"${viaIP}\" dev \"yggdrasil\" table \"main\"") (map stripSubnet hostIPs.${routeArgs.via})) hostIPs.${other}) hostRoutes}
         '';